Geologic Periods
News
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Useful Search Engines
More specific than Google:
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WorldWideScienceSearch info from global government agencies
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Ocean Data PortalOcean data and information
Geographic Names
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GEOnet Names Server (GNS)Standard spellings of foreign place names (National Geospatial-Intelligence Agency)
Maps
Maps - United States topographic maps are located in the Libraries storage facility. Policy & usage guidelines.
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The National MapIncludes mapmaking software, geospatial datasets, digital topographic maps
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US Topo Quadranglesdigital topo maps from USGS in the National Map
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MyTopo Free Online Topo Mapstopos & aerial photography
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The USGS StoreShop for all maps, world, United States, state, wall decor, historic, planetary, topographic, trail, hiking, foreign, satellite, digital
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United Nations Cartographic Section Web SiteGeneral and mission maps in PDF
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EarthExplorersatellite images, aerial photographs, and maps
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L.L. Bean stocks local quadrangles
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Libre Map ProjectFree Maps and GIS data
Guidebooks
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Geology of National Parks3D and photographic tours
Atlases
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Geologic Atlas of the United StatesPaper copies available in the Science Library, lower level.
Images
Finding Images on the Web includes copyright guidelines.
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USGS Multimedia GallerySearch for photos, video, audio
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Earth Science World Image BankAmerican Geological Institute
Fun Sites
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Earth As ArtDownloadable satellite images
